【英文标准名称】:StandardTestMethodforDeterminingActivityandSelectivityofFluidCatalyticCracking(FCC)CatalystsbyMicroactivityTest
【原文标准名称】:用微活性试验法测定流化床催化裂化(FCC)催化剂的活性和选择性的标准试验方法
【标准号】:ASTMD5154-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D32.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:活性;催化剂;试验
【英文主题词】:catalysts;FCC;Fluidcrackingcatalyst;MAT;microactivity;selectivity
【摘要】:ThemicroactivitytestprovidesdatatoassesstherelativeperformanceofFCCcatalysts.Becauseresultsareaffectedbycatalystpretreatment,feedstockcharacteristics,testequipment,andoperatingparameters,adherencetothistestmethodisaprerequisiteforcorrectinterpretationofresults.Apparatus,testconditions,andanalyticalproceduresactuallyusedshouldcloselyresemblethosedescribedinthistestmethod.Significantvariationsinapparatus,testconditionsand/oranalyticalproceduresmayresultinactivityandselectivitydatawhichdonotcorrelatewithdatadevelopedbyotherlaboratoriesonidenticalcatalyst/feedstocksamples.Thestandardmethodreactiontemperatureis516x00B0;C(960x00B0;F).Otherreactiontemperaturescanbeused;however,catalystselectivitydatadevelopedattemperaturesotherthan516x00B0;Cmaynotcorrelatewithselectivitydatadevelopedat516x00B0;C.Also,precisionatotherreactiontemperaturesmaychangecomparedtodataobtainedat516x00B0;C.1.1Thistestmethodcoversdeterminingtheactivityandselectivityofeitherequilibriumorlaboratorydeactivatedfluidcatalyticcracking(FCC)catalysts.Theactivityisevaluatedonthebasisofweightpercentconversionofgasoilinamicroactivityunit.Theselectivitiesareevaluatedonthebasisofweightpercentyieldsofspecificallydefinedproductsresultingfromthecatalyticcrackingofgasoil.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesareprovidedforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G74
【国际标准分类号】:
【页数】:8P.;A4
【正文语种】:


【英文标准名称】:Thermocouples;tolerances;identicalwithIEC60584-2:1982(statusof1989);germanversionHD446.2S2:1990
【原文标准名称】:热电偶.允差
【标准号】:DINIEC60584-2-1992
【标准状态】:现行
【国别】:德国
【发布日期】:1992-06
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:过程测量和控制技术;计量学;等级;热电导线;过程控制;偏差;温度;热电偶;测量;温差电器件;热电电压;电气工程;极限(数学);定义;公差(测量)
【英文主题词】:Classes;Controltechnology;Definition;Definitions;Deviations;Electricalengineering;Limitdeviations;Limits(mathematics);Measurement;Metrology;Processcontrol;Processmeasuringandcontroltechnology;Tables(data);Temperature;Thermocouples;Thermoelectricdevices;Thermoelectricvoltage;Thermowires;Toleranceclasses;Tolerances(measurement)
【摘要】:Thedocumentcontainsthemanufacturingtolerancesforbothnobleandbasemetalthermocouplesmanufacturedinaccordancewithe.m.f.-temperaturerelationsshipsofDINIEC584part1.
【中国标准分类号】:N11
【国际标准分类号】:17_200_20
【页数】:3P.;A4
【正文语种】:德语